Question
The boys and girls in a college are in the ratio 4:3. If
15% of the boys and 22% of the girls are adults, the percentage of students who are not adults is-Â Â ÂSolution
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There are 5 Red caps, 3 Green caps and 2 Blue caps in a box. 4 caps are chosen at random. What is the probability of their being 2 Red and 2 Blue caps?
A bag contains 5 red, 4 green, and 3 blue balls. What is the probability of drawing a green ball?
If three socks are chosen at random, what is the probability that all are blue socks?
A bag contains 9 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
Tom and Jerry throw alternatively a pair of dice. Tom wins if he throws 8 before Jerry throws 7 and Jerry wins if he throws 7 before Tom throws 8. Find...
A bag contains 6 balls of which 3 are red and 3 are black. They are drawn successively without replacement. What is the probability that colors are alt...
There are three boxes ‘A’, ‘B’ and ‘C’. Box ‘A’ contains 6 black and 12 white cubes, box ‘B’ contains 6black, and 8 white cubes and ...
A box contains 8 yellow marbles, ‘x’ blue marbles and 12 white marbles. A box contains 5 yellow marbles, 2 blue marbles and 3 white marbles. The pro...
Given that E and F are events such that P(E) = 0.8, P(F) = 0.4 and P(E∩ F) = 0.2. Find P(F|E).
If a coin is tossed 10 times then what is the probability of getting three heads?
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